Grease-gup



(No Model.)

E. H. BENNERS. GREASE 0UP.

Arnnr warren.

EDWI) II. BENNERS, OF ELIZABETH, NEIY JERSEY.

GREASE-CUP.

SPECIFICATION forming part of Letters Patent No. 448,471, dated March 17', 1891.

Application filed October 22, 1890 $erial No. 368,882. (No model.)

To whom it may concern.-

Be it known that I, EDWIN I-l. l-Snxnnns, a resident of Elizabeth, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Grease- Cups; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an improvement in grease-cups, the object being to provide means for the automatic and economical feed of grease to the moving parts of machinery; and with this end in view it consists in a cylindrical cup having a plunger fitted therein in connection with a weighted vibrating disk, adapted by the motion of the parts to suecessively drop from and against the plunger to force the latter against the grease contained therein, whereby a continuous feed is kept up, varying according to the motion of the machinery, it being greater as the speed of the parts increases and less as the speed diminishes.

The invention further consists in certain novel features of construction and combinations of parts, as will be hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a view in elevation. Fig. 2 is a sectional view of one form of cup, and Fig. 3 is a modification.

A represents a cylindrical cup, preferably having a removable cap 1, as shown in Figs. 1 and 2, or a removable base 2, as in Fig. 3, by which to open and replenish the cup when the grease is exhausted. The shape and size of this cylinder are of course immaterial, and, in fact, it is not absolutely necessary that the cup should be cylindrical in shape. The removable cap and base may be milled or made angular, as desired, and otherwise constructed to suit the demand.

A gravity-plunger 3 is titted inside of the cylinder, where it is adapted to exert a constant pressure upon the grease contained therein and cause it to feed out through the opening 4 at the bottom of the cylinder. The plunger alone however, is hardly sufficient to produce the desired result, and hence a weighted vibrating disk 5 is loosely mounted on its stem 6 in such a manner. as to permit the disk to play back and forth, and by its sudden jars down upon the plunger to drive the latter against the grease to force it out.

It may here be stated that this cup is especially calculated to be used upon the moving parts of machinerysueh, for example, as the parts of locomotives which are constantly moving, because the vibratory movement or pulsations of the weight is dependent upon the movement of the cup, and the faster the parts move the harder the stroke of the disk against the plunger and the greater the quantity of grease fed.

lVhile the essential feature of the invention is a weighted vibrating disk, yet as there are some other features which help to contribute to a successful operation of my greasecup they will now be described. In the first place, the plunger is preferably dished out on its upper surface and provided in the center with a stem 6, the object of which construction is to assemble the parts in the smallest space possible and give the disk ample distance to vibrate in and yet make the stem as short as possible. A thin washer is usually placed between the disk and plunger and one is placed over the disk to deaden or prevent the clattering noise which would otherwise take place, and the disk is preferably so constructed that it just fills the dished-out portion of the plunger and lies finsh at the top with the upper surface of the plunger. The stem 6 is screw-threaded atits upper end and provided with a nut 7, which is turned on or off to vary the distance of vibration of the disk, and afterbeingthus adjusted itis held in place on the stem by means of a jam-nut or, as shown in Fig. 2, by a set-screw in the side of the nut, or by still another way, as shown in Fig. 3, by splitting the end of the stem and spreading it by a screw 8. Other convenient means could also be adopted, but these have been considered the simplest and most feasible. The disk may also be dished out on top, as shown in Fig. 2, and the nut 7 made to conform in shape; or the disk may be flat on top and a nested spiral spring 9 may be located between the disk and nut to assist in forcing the disk against the plunger.

\Vhen the cup is to be opened from the top in order to replenish it, some means has to be provided for allowing air to enter thclower chamber of the cylinder, otherwise the suction would be so great that the plunger could not he removed, and while various plans could be employed for accomplishing this I have adopted the following as one convenient expedientnamely, the stem 6 is provided with an air-duct 10, which is closed by a screw at the upper end, and this screw has a groove m in one side which extends part way from its point to the head, so that it is only necessary to give the screw a few backward turns to open the duct and form an air-passage.

In the construction shown in Fig. 3, if found necessary, one or more air-ducts 11 may be made in the plunger.

It may be added, in conclusion, that in my present device the parts are simplified and reduced to a minimum, and also they may be easily and cheaply made, and the entire device may be put on the market at a small cost.

Constructive changes may be made in the various details of the invention without departing from the spirit and scope of my invention, and hence I do not wish to be limited to the exact construction herein set forth; but,

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a grease-cup, the combination, with a shell or casing and plunger therein, of a disk located above the plunger and restingloosely thereon,wherebyit may vibrateindependently of theplunger, and by its contact against the latter force it in the direction the disk is taking, substantially as set forth.

2. In a grease-cup, the combination, with a shell or casing and plunger fitted therein, of a weighted disk resting loosely against the plunger and means for varying the extent of vibration of the disk, substantially as set forth.

3. In a grease-cup, the combination, with a shell ,or casing and plunger fitted therein, of a weighted vibrating disk, a nut for varying the extent of vibration of the disk, and means for securing said nut in place, substantially as set forth.

4. In a grease-cup, the combination, with a shell or casing and plunger fitted therein, said plunger having a stem, of a weighted disk mounted on the stem and adapted to vibrate against the plunger, and means on the stem for limiting the vibration of the disk, substantially as set forth.

In testimony whereof I have signed this specification n the presence of two subscribing witnesses.

EDWIN H. BENNERS.

IVitnesse-s:

O. P. DRURY, GEO. F. DOWNING. 

